S.C. Code Ann. § 49-19-1420: Contract for improvements.

The contract shall be in writing and to it shall be attached and made a part thereof complete plans and specifications of the work to be done and improvements to be made under such contract. The plans and specifications shall be prepared by the chief engineer and shall be incorporated in and attached to the contract. The contract shall be prepared by the attorney for the district and approved by the board of supervisors and executed by its president and the contractor in duplicate.